﻿/*
truncate
This plugin will let you truncate it to a specified length, with a link to expand it to view it's full content.
http://blog.jeremymartin.name/2008/02/building-your-first-jquery-plugin-that.html
*/

(function( $ ){
    $.fn.truncate = function(options) {

        var defaults = {
            length: 300,
            minTrail: 20,
            moreText: "more",
            lessText: "less",
            ellipsisText: "..."
        };

        var options = $.extend(defaults, options);

        return this.each(function() {
            obj = $(this);
            var body = obj.html();

            if (body.length > options.length + options.minTrail) {
                var splitLocation = body.indexOf(' ', options.length);
                if (splitLocation != -1) {
                    // truncate tip
                    var splitLocation = body.indexOf(' ', options.length);
                    var str1 = body.substring(0, splitLocation);
                    var str2 = body.substring(splitLocation, body.length - 1);
                    obj.html(str1 + '<span class="truncate_ellipsis">' + options.ellipsisText + '</span><span  class="truncate_more">' + str2 + '</span>');
                    obj.find('.truncate_more').css("display", "none");

                    // insert more link
                    obj.append('<div class="clearboth"><a href="#" class="truncate_more_link">' + options.moreText + '</a></div>');

                    // set onclick event for more/less link
                    var moreLink = $('.truncate_more_link', obj);
                    var moreContent = $('.truncate_more', obj);
                    var ellipsis = $('.truncate_ellipsis', obj);
                    moreLink.click(function() {
                        if (moreLink.text() == options.moreText) {
                            moreContent.slideDown('slow');
                            moreLink.text(options.lessText);
                            ellipsis.css("display", "none");
                        } else {
                            moreContent.slideUp('fast');
                            moreLink.text(options.moreText);
                            ellipsis.css("display", "inline");
                        }
                        return false;
                    });
                }
            }
        });
    };
})( jQuery );


